ok I say this now I not seen it befoer but it appears that on 3 of my het pied clutch I got what I can onl call a color spots in the boob part of the egg. I wiped them down and placed liquid bandaid over the spots in questiong but te spots appear to be within the shell part. ( figuring it related to the egg being boobs but they still show viens really well. I check them at the time of laying and when I was cleaning them and putting the liquid baindaid on. I can't find any anti fungal powder it all lotions and spray when I looked.
I hate to loose these eggs to a fungal or mold. ( next clutch I gonigot try a medium free set up with just a light disfusser and asome water under it ( might go 2x light disfusser to prevent wetting of the eggs.)
also found the tstat unplugged this morning ( i think it got bumped when I was cleaning ( only dropped from 88.9 to about 86 for over night the eggs are only 1clutch a week old and the other less than 3 days.